Disable libcore.highmemorytest tests on fugu

Bug: 258173036
Test: arts/tools/run-libcore-tests.sh
Change-Id: Ib3e8cda496281650dad43ae33c5354118fa7316a
diff --git a/tools/run-libcore-tests.py b/tools/run-libcore-tests.py
index e1f08a1..19529ec 100755
--- a/tools/run-libcore-tests.py
+++ b/tools/run-libcore-tests.py
@@ -396,7 +396,9 @@
   if args.gcstress and args.debug:
     test_names = list(filter(lambda x: x not in DISABLED_GCSTRESS_DEBUG_TESTS, test_names))
   if not args.getrandom:
-    test_names = list(filter(lambda x: x not in DISABLED_FUGU_TESTS, test_names))
+    # Disable libcore.highmemorytest due to limited ram on fugu. http://b/258173036
+    test_names = list(filter(lambda x: x not in DISABLED_FUGU_TESTS and
+                                       not x.startswith("libcore.highmemorytest"), test_names))
   return test_names
 
 def get_vogar_command(test_name):